SML2393

XL019

≥98% (HPLC)

• Synonym(s): (2S)-N-[4-[2-[[4-(4-Morpholinyl)phenyl]amino]-4-pyrimidinyl]phenyl]-2-pyrrolidinecarboxamide, (S)-N-(4-(2-(4-Morpholinophenylamino)pyrimidin-4-yl)phenyl)pyrrolidine-2-carboxamide, N-(4-{2-[(4-Morpholin-4-ylphenyl)amino]pyrimidin-4-yl}phenyl)-L-prolinamide
• Empirical Formula (Hill Notation): C₂₅H₂₈N₆O₂
• CAS Number: 945755-56-6
• Molecular Weight: 444.53
• MDL number: MFCD24386874
• UNSPSC Code: 12352200

Properties

• Assay: ≥98% (HPLC)
• form: powder
• color: white to beige
• solubility: DMSO: 2 mg/mL
• storage temp.: 2-8°C
• SMILES string: O=C(NC1=CC=C(C=C1)C2=NC(NC3=CC=C(C=C3)N4CCOCC4)=NC=C2)[C@H]5NCCC5
• InChI: 1S/C25H28N6O2/c32-24(23-2-1-12-26-23)28-19-5-3-18(4-6-19)22-11-13-27-25(30-22)29-20-7-9-21(10-8-20)31-14-16-33-17-15-31/h3-11,13,23,26H,1-2,12,14-17H2,(H,28,32)(H,27,29,30)/t23-/m0/s1
• InChI key: ISOCDPQFIXDIMS-QHCPKHFHSA-N

Description

Biochem/physiol Actions

XL019 is an ATP-binding site-targeting, orally active JAK2 subtype-selective Janus kinase inhibitor (IC50 in nM = 2.2/JAK2 vs. 134.3/JAK1, 214.2/JAK3, 348.3/TYK2) with much reduced or little activity against 116 other kinases (IC50 in nM = 125.4/PDGFRB, 139.7/FLT3, 225.8/c-KIT, 313.8/p70S6K, 370/MLK1, 375.4/IKKbeta, 483.6/KDR, 546.7/PDGFRA, 554.5/FLT4, 910.5/FLT; IC50 >1 μM toward remaining 106 kinases), CYP (1A2, 2C9, 2D6, 3A4 IC50 ≥20 μM), hERG (IC50 = 16 μM), and P-glycoprotein (IC50 >20 μM). XL019 effectively inhibits cellular STAT1/STAT3 phosphorylation both in HEL92.1.7 cultures (IC50 in nM = 386.4/pStat1 and 695/pStat3) and in HEL92.1.7 xenograft-derived tumor in mice in vivo (oral ED50 in mg/kg = 42/pStat1 and 210/pStat3) with significant HEL92.1.7 tumor suppression efficacy in mice (by 60% and 70% on day 14, respectively, with 200 and 300 mg/kg bid p.o. dosage).

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Statements: H372
• Precautionary Statements: P260 - P264 - P270 - P314 - P501
• Hazard Classifications: STOT RE 1 Oral
• Target Organs: Central nervous system
• Storage Class Code: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable